Spring下使用Hibenrate annotation

LocalSessionFactoryBean 中的原码注解:

private Class configurationClass = Configuration.class;

 /**
  * Specify the Hibernate Configuration class to use.
  * Default is "org.hibernate.cfg.Configuration"; any subclass of
  * this default Hibernate Configuration class can be specified.
  *

Can be set to "org.hibernate.cfg.AnnotationConfiguration" for
  * using Hibernate3 annotation support (initially only available as
  * alpha download separate from the main Hibernate3 distribution).
  *

Annotated packages and annotated classes can be specified via the
  * corresponding tags in "hibernate.cfg.xml" then, so this will usually
  * be combined with a "configLocation" property that points at such a
  * standard Hibernate configuration file.
  * @see #setConfigLocation
  * @see org.hibernate.cfg.Configuration
  * @see org.hibernate.cfg.AnnotationConfiguration
  */
 public void setConfigurationClass(Class configurationClass) {
  if (configurationClass == null || !Configuration.class.isAssignableFrom(configurationClass)) {
   throw new IllegalArgumentException(
     "configurationClass must be assignable to [org.hibernate.cfg.Configuration]");
  }
  this.configurationClass = configurationClass;
 }